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Discussion Starter · #1 ·
While I was riding a couple weeks back I noticed my kfx400 was smoking quite a bit. It's a white smoke. Is it burning oil or coolant?

Any info would be appreciated.
 

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Sounds like coolant.. You seeing the level drop in the rad?
 

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Could be rings/ piston/ cylinder, or possibly valve guides, more noticable on decelleration. Do a compresssion test, then squirt some oil in the cylinder and try it again. If it improves, likely rings.
 

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I got a kit at Napa or Oreilly's. Make sue you get one with all the adapters to fit the smaller plugs.
 
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